Golf putter head with undercut cavity back



FIG. 1 is a front face view of a putter head embodying our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a toe end view thereof;

FIG. 4 is a heel end view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a sectional view taken on lines 7--7 of FIG. 6; and,

FIG. 8 is a sectional view taken on lines 8--8 of FIG. 6. 

The ornamental design for golf putter head with undercut cavity back, as shown and described. 